cyber-murmel

diff --git a/src/platforms/common/cdcacm.c b/src/platforms/common/cdcacm.c
index 399dd3d..d56d10e 100644
--- a/src/platforms/common/cdcacm.c
+++ b/src/platforms/common/cdcacm.c
@@ -451,12 +451,17 @@ static enum usbd_request_return_codes  cdcacm_control_request(usbd_device *dev,
 	case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
 		cdcacm_set_modem_state(dev, req->wIndex, true, true);
 		/* Ignore if not for GDB interface */
-		if(req->wIndex != GDB_IF_NO)
+		switch(req->wIndex) {

cyber-murmel

{config, pkgs, lib, ...}: {
  users.users.satisfactory = {
    home = "/var/lib/satisfactory";
    createHome = true;
  };

  nixpkgs.config.allowUnfree = true;

  systemd.services.satisfactory = {
    wantedBy = [ "multi-user.target" ];

cyber-murmel

OpenWRT supports the ESPRESSObin Ultra since 2020. Official builds are available.

In thins gist I want to explain how to install the image onto the board via a USB thumb drive.

All you need

• ESPRESSObin Ultra
• 12V 2A DC or PoE power supply
• USB A to USB Micro-B cable
• wired internet connection

cyber-murmel

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h> // compile with -lm

#define MASK(LEN) ((1<<LEN)-1)
#define GET_BITS(VAR, POS, NUM) ((VAR>>POS) & MASK(NUM))
#define GET_BIT(VAR, POS) GET_BITS(VAR, POS, 1)

cyber-murmel

EE & CE Resources

:::info This is a compiliation of useful links on the topic of electrical and computer engineering. This isnt' a comprehensive list. Feel free to add links to resources you found useful yourself.

:::

:::info

cyber-murmel

{ pkgs ? import <nixpkgs> {} }:

let
  fixWrapper = pkgs.runCommand "fix-wrapper" {} ''
    mkdir -p $out/bin
    for i in ${pkgs.gcc.cc}/bin/*-gnu-gcc*; do
      ln -s ${pkgs.gcc}/bin/gcc $out/bin/$(basename "$i")
    done
    for i in ${pkgs.gcc.cc}/bin/*-gnu-{g++,c++}*; do
      ln -s ${pkgs.gcc}/bin/g++ $out/bin/$(basename "$i")

cyber-murmel

Recursive File Integrity Checking using openssl dgst

Checksumming

Use find to iterate trought all subdirectories of the given path (./). openssl dgst -sha256 each file in each directory and add the output to the SHA256 file in the corresponding directory.

find ./ -type d -exec sh -c 'cd "{}"; find ./ -maxdepth 1 -type f -not -name SHA256 -exec openssl dgst -sha256 \{\} + | sort -u | tee SHA256' \;

Checking

cyber-murmel

# each datamatrix size can fit as many numbers as according to the following dict
# a non-number letter needs double as much space as a number
# an emoji need 16x as much space as a number 😂
size_capacity_maps = {
    'square':   {
         '10x10':     6,   '12x12':   10,   '14x14':   16,   '16x16':   24,
         '18x18':    36,   '20x20':   44,   '22x22':   60,   '24x24':   72,
         '26x26':    88,   '32x32':  124,   '36x36':  172,   '40x40':  228,
         '44x44':   288,   '48x48':  348,   '52x52':  408,   '64x64':  560,
         '72x72':   736,   '80x80':  912,   '88x88': 1152,   '96x96': 1392,

cyber-murmel

# -*- coding: utf-8 -*-

# Copyright 2020 by https://badge.team/
# This file is released under the "CC0 1.0 Universal" license.
# https://creativecommons.org/publicdomain/zero/1.0/legalcode

from machine import Pin, SPI

# Pins
pin_reset = Pin(16, Pin.OUT)

cyber-murmel

# -*- coding: utf-8 -*-

# Copyright 2020 by https://badge.team/
# This file is released under the "CC0 1.0 Universal" license.
# https://creativecommons.org/publicdomain/zero/1.0/legalcode

from machine import Pin, SPI
import wifi, urequests, sys

# Pins